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(No M odelf) E. M. JBWETT.

MACHINE FOR JOINTING GOMPRESSED BENT STAVES.

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ArtNr EDWARD M. JEVVETT, OF BUFFALO, NEW YORK, ASSIGNOR TO HIMSELF ANDEDWARD MICHAEL, OF SAME PLACE.

MACHINE FOR JOINTING COMPRESSED BENT STAVES.

SPECIFICATION forming part of Letters Patent No. 335,074, dated January26, 1886,

Application filed June 18,1585.

To all whom it may concern:

Beit known that I, EDWARD M. Jnwn'rr,

a citizen of the United States, residing in Buffalo, in the county ofErie and State of New York, have invented certain new and usefulImprovements in Machines for Jointing Compressed Bent Staves, of whichthe following is a specification.

The object of this invention is to provide the means for jointing stavesthat have been compressed and formed into the required shape to form abarrel before being cut or jointed, so that they will all fit togethertruly when put into a barrel, all of which will be l 5 fully and clearlyhereinafter shown, described,

and claimed, by reference to the accompanying drawings, in which- Figurel is a perspective view of a suitable stave-jointer for illustrating myinvention. Fig. 2 is a side elevation of the stave-rest.

. Fig. 2 is a top view of the restand bed upon which the stave isjointed. Fig. 3 is a perspective view of a stave after it has beencompressed into shape preparatory to being jointed. Fig. 4 isastaveformed andjointed, and Fig. 5 represents a cross'section through thestave-rest and bed, showing also an end view of a stave.

The side frames, a, of the machine are made of cast-iron, and puttogether by bolts in the usual way.

a2 is the cross-head, arranged in slides or openings c', so as to becapable of moving up and down in said openings. The cutter a is madeinthe usual way, and secured to the cross-head by bolts c2. It is curvedso as to give the proper bilge to the stave. To the cross-head aresecured two vertical rods, a5. rlhey pass through holes in thecrosspieces c, and rest on the sliding blocks c2. On each of these rodsa5 is a spiral spring, g, each of which rests on the stationarycrosspieces c.

To each block c2 is attached a pin, c, having a chain, c, connectedtherewith and to a cam, c5, (one on each side of the machine.) The camsc6 are rigidly secured to a shaft, e, mounted in bearings 7L in thesides of the machine.

' to its normal position.

Serial No. 169,028. (No model.)

To the shaft c is rigidly fastened a foot- 5o step, e'.

The bed of the machine, c, is secured to the frame by bolts a, in anywell-known way.

e represents the rest or lower cutter, on which the stave rests while'being cut. (See 5 5 Figs. 2n and 5.) It is secured in place to the bedby bolts e5. rlhis rest is curved in a hori zon'tal direction, or on itsside, as shown in Fig. 2, so as to give the required bilge to the staveand correspond with the curve of 6c the cutter ai. It is also curved onthe top, so as to exactly fit the under side of the stave. (See Fig. 2.)

To the bed c3 is a vertically-adj ustable bar,

e, upon which one side of the stave rests while being cut. The object inmaking it adjustable is to provide the means for adj usting the angle atwhich the stave is cut, as will be seen, whereby the cut may be adjustedfor barrels of different sizes or of dif- 7c ferent diameters. It ismade adjustable by the bolts f"'.

In operating my invention a stave, f, is placed on the rest and bed ofthe machine. (See Figs. l and 5.) It will be noticed that this stave hasalready been compressed into the shape it would occupy when placed in abarrel. A pressure upon the foot-step will turn the shaft e and cams c5,thereby winding the chain ct around the cams and 8o forcing the cutterdown onto the stave and jointing it. By removing the pressure from thefoot-step the springs g bring the cutter up It will be seen that by theshape of the cams c5, which increase in diameter from the shaft to thepoint of the cam, the critter will be drawn down with an increasingvelocity, thereby insuring a smoother cut toward the ends of the staves,and that, as the rest is curved upward so as to iit the 9c curve of thestave while being cut, the stave will be jointed exactly true, so thatwhen put into a barrel all the joints will t true and close, whereas abent stave cut on a straight rest would not be jointed exactly true.

I am aware of Patents Nos. 314,648, 197,394, and 262,770, and do notclaim the inventions covered therein.

I claim as my nvention-y and a cutter having cutting-edge curved to Ina. machine for joinbing staves, the comconform with the stave-rest,substantially as bination of a stave-rest; having a cutting edge,described.

a bei' curved to conform to the edge of the E. M. JEWETT. 5 stave, a topcurved transversely andlongibudi- Vitnesses:

nally to correspond with the hollow side of JENNIE M. CALDWELL,

e ,compressed bent stave, an adjusting-bar, e, JAMES SANGSTER.

Leiters Patent Itis herebyT certified that Letters Patent No. 335,074,granted January 26, 1886, upon the application oi' Edward M. Jewett, ofBuffalo, New York, for an improvement in Machines for JointingCompressed Bent Staves, was erroneously issued to Edward M. Jewett, theinventor, and Edward Michaelg7 that said Letters Patent Jewett andEdward Michael being` assignees ofthe entire interest, and that theproper corrections have been made in the files and records of the casein the Patent Ofce and should be read in the Letters Patent that thesaine may conform thereto.

Signed, countersigned, and sealed this 23d day of February, A. D. 1886.

[SEAL] H. L. MULDROW,

Acting Secretary of the Interior.

e Correction 'm Countersigned:

M. V. MONTGOMERY,

Commissioner of Patents.

MMM

should have been issued to Edward W. Jewett and Edward Michael, saidEdward W.

